public void DrawPictureToPictureBuffer(PictureResource resource, bool overlay)
{
PictureRenderer renderer = new PictureRenderer(this.PictureBuffer);
PictureInterpreter interpreter = new PictureInterpreter();
if (!overlay)
{
renderer.Clear();
}
interpreter.Execute(resource, renderer);
}
/// <summary>
/// Execute the specified picture resource.
/// </summary>
/// <param name="resource">Picture to execute.</param>
/// <param name="renderer">Picture renderer.</param>
public void Execute(PictureResource resource, PictureRenderer renderer)
{
if (resource == null)
{
throw new ArgumentNullException(nameof(resource));
}
this.Renderer = renderer ?? throw new ArgumentNullException(nameof(renderer));
this.pattern = 0;
byte[] pictureData = resource.Data;
int offset = 0;
while (offset < pictureData.Length && pictureData[offset] != PictureCode.End)
{
byte instruction = pictureData[offset];
offset++;
switch (instruction)
{
case PictureCode.VisualEnabled:
this.Renderer.VisualEnabled = true;
this.Renderer.VisualColor = pictureData[offset];
offset++;
break;
case PictureCode.VisualDisabled:
this.Renderer.VisualEnabled = false;
break;
case PictureCode.PriorityEnabled:
this.Renderer.PriorityEnabled = true;
this.Renderer.PriorityColor = pictureData[offset];
offset++;
break;
case PictureCode.PriorityDisabled:
this.Renderer.PriorityEnabled = false;
break;
case PictureCode.YCorner:
offset = this.ReadYCorner(pictureData, offset);
break;
case PictureCode.XCorner:
offset = this.ReadXCorner(pictureData, offset);
break;
case PictureCode.AbsoluteLine:
offset = this.ReadAbsoluteLine(pictureData, offset);
break;
case PictureCode.RelativeLine:
offset = this.ReadRelativeLine(pictureData, offset);
break;
case PictureCode.Fill:
offset = this.ReadFill(pictureData, offset);
break;
case PictureCode.Pattern:
this.pattern = pictureData[offset];
offset++;
break;
case PictureCode.Brush:
offset = this.ReadBrush(pictureData, offset);
break;
default:
break;
}
}
}
